cederom commented on code in PR #19937: URL: https://github.com/apache/nuttx/pull/19937#discussion_r3838850766
########## Documentation/components/drivers/special/ioexpander.rst: ########## @@ -120,6 +124,16 @@ Notes on individual drivers: - ``IOEXPANDER_TCA64XX`` and ``IOEXPANDER_PCF8574`` additionally depend on ``CONFIG_EXPERIMENTAL``. +- ``IOEXPANDER_CH422G`` presents the eight bi-directional pins, IO0-IO7, as + pins 0-7 and the four open-drain outputs, OC0-OC3, as pins 8-11, so + ``CONFIG_IOEXPANDER_NPINS`` must be at least 12. The device selects a Review Comment: Why not `CONFIG_IOEXPANDER_CH422G_NPINS` if this is CH422G specific? Currently it seems to affect all IOExapanders which may not have this 12 limitation and could be misleading? :-P -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
